Blake Lively traded her lacy white daytime Dolce & Gabbana for a sexy red Marchesa minidress and Brian Atwood shoes at last night's CinemaCon awards in Las Vegas. She and Green Lantern costar Ryan Reynolds were out to promote their movie, and she accepted the statue for breakthrough performer of the year during the ceremony. Other honorees of the evening included Helen Mirren, Julianne Hough, Rosie Huntington-Whitely, and Chris Hemsworth. Backstage Blake enjoyed being surrounded by handsome men, not the least of which is her friend Ryan, who is sporting a hot new haircut, and she joked that she felt like she was at a "superhero convention." In fact, she's headed straight for one as she and Ryan will jet off to San Francisco today for WonderCon, where BuzzSugar will be reporting live from all the action all weekend long!